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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/boost/libs/graph/example/edge_property.cpp
parentInitial commit. (diff)
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Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/graph/example/edge_property.cpp')
-rw-r--r--src/boost/libs/graph/example/edge_property.cpp163
1 files changed, 163 insertions, 0 deletions
diff --git a/src/boost/libs/graph/example/edge_property.cpp b/src/boost/libs/graph/example/edge_property.cpp
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+//=======================================================================
+// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
+// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//=======================================================================
+//
+// Sample output:
+//
+// 0 --(8, 10)--> 1
+//
+// 1 --(12, 20)--> 4 --(12, 40)--> 3
+// <--(8,10)-- 0 <--(16,20)-- 2
+// 2 --(16, 20)--> 1
+// <--(16,20)-- 5
+// 3 --(12, 40)--> 6
+// <--(12,40)-- 1
+// 4 --(12, 20)--> 7
+// <--(12,20)-- 1
+// 5 --(16, 20)--> 2
+// <--(16,20)-- 6
+// 6 --(16, 20)--> 5 --(8, 10)--> 8
+// <--(12,20)-- 7 <--(12,40)-- 3
+// 7 --(12, 20)--> 6
+// <--(12,20)-- 4
+// 8
+// <--(8,10)-- 6
+//
+//
+// 0 --(8, 1)--> 1
+//
+// 1 --(12, 2)--> 4 --(12, 3)--> 3
+// <--(8,1)-- 0 <--(16,4)-- 2
+// 2 --(16, 4)--> 1
+// <--(16,7)-- 5
+// 3 --(12, 5)--> 6
+// <--(12,3)-- 1
+// 4 --(12, 6)--> 7
+// <--(12,2)-- 1
+// 5 --(16, 7)--> 2
+// <--(16,8)-- 6
+// 6 --(16, 8)--> 5
+// <--(12,10)-- 7 <--(12,5)-- 3
+// 7 --(12, 10)--> 6
+// <--(12,6)-- 4
+// 8
+//
+
+#include <boost/config.hpp>
+#include <iostream>
+
+#include <boost/utility.hpp>
+#include <boost/property_map/property_map.hpp>
+#include <boost/graph/adjacency_list.hpp>
+
+
+using namespace boost;
+using namespace std;
+
+
+enum edge_myflow_t { edge_myflow };
+enum edge_mycapacity_t { edge_mycapacity };
+
+namespace boost {
+ BOOST_INSTALL_PROPERTY(edge, myflow);
+ BOOST_INSTALL_PROPERTY(edge, mycapacity);
+}
+
+
+template <class Graph>
+void print_network(const Graph& G)
+{
+ typedef typename boost::graph_traits<Graph>::vertex_iterator Viter;
+ typedef typename boost::graph_traits<Graph>::out_edge_iterator OutEdgeIter;
+ typedef typename boost::graph_traits<Graph>::in_edge_iterator InEdgeIter;
+
+ typename property_map<Graph, edge_mycapacity_t>::const_type
+ capacity = get(edge_mycapacity, G);
+ typename property_map<Graph, edge_myflow_t>::const_type
+ flow = get(edge_myflow, G);
+
+ Viter ui, uiend;
+ boost::tie(ui, uiend) = vertices(G);
+
+ for (; ui != uiend; ++ui) {
+ OutEdgeIter out, out_end;
+ cout << *ui << "\t";
+
+ boost::tie(out, out_end) = out_edges(*ui, G);
+ for(; out != out_end; ++out)
+ cout << "--(" << capacity[*out] << ", " << flow[*out] << ")--> "
+ << target(*out,G) << "\t";
+
+ InEdgeIter in, in_end;
+ cout << endl << "\t";
+ boost::tie(in, in_end) = in_edges(*ui, G);
+ for(; in != in_end; ++in)
+ cout << "<--(" << capacity[*in] << "," << flow[*in] << ")-- "
+ << source(*in,G) << "\t";
+
+ cout << endl;
+ }
+}
+
+
+int main(int , char* [])
+{
+ typedef property<edge_mycapacity_t, int> Cap;
+ typedef property<edge_myflow_t, int, Cap> Flow;
+ typedef adjacency_list<vecS, vecS, bidirectionalS,
+ no_property, Flow> Graph;
+
+ const int num_vertices = 9;
+ Graph G(num_vertices);
+
+ /* 2<----5
+ / ^
+ / \
+ V \
+ 0 ---->1---->3----->6--->8
+ \ ^
+ \ /
+ V /
+ 4----->7
+ */
+
+ add_edge(0, 1, Flow(10, Cap(8)), G);
+
+ add_edge(1, 4, Flow(20, Cap(12)), G);
+ add_edge(4, 7, Flow(20, Cap(12)), G);
+ add_edge(7, 6, Flow(20, Cap(12)), G);
+
+ add_edge(1, 3, Flow(40, Cap(12)), G);
+ add_edge(3, 6, Flow(40, Cap(12)), G);
+
+ add_edge(6, 5, Flow(20, Cap(16)), G);
+ add_edge(5, 2, Flow(20, Cap(16)), G);
+ add_edge(2, 1, Flow(20, Cap(16)), G);
+
+ add_edge(6, 8, Flow(10, Cap(8)), G);
+
+ print_network(G);
+
+ property_map<Graph, edge_myflow_t>::type
+ flow = get(edge_myflow, G);
+
+ boost::graph_traits<Graph>::vertex_iterator v, v_end;
+ boost::graph_traits<Graph>::out_edge_iterator e, e_end;
+ int f = 0;
+ for (boost::tie(v, v_end) = vertices(G); v != v_end; ++v)
+ for (boost::tie(e, e_end) = out_edges(*v, G); e != e_end; ++e)
+ flow[*e] = ++f;
+ cout << endl << endl;
+
+ remove_edge(6, 8, G);
+
+ print_network(G);
+
+
+ return 0;
+}